Automatic cloth-guide.



J. T.'.\BOLTON.

AUTOMATIC CLOTH GUIDE.

APPLICATION FILED FEB. 4. m5.

1,1 85,173. y w PaIenIed May 3o, 1916.

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JOHN T. BOLTON, OF NEW HAVEN, CONNECTICUT, .ASSIGNOR OF ONE-HALF TO' THE FORSYTH DYEING CO., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

AUTOMATIC CLOTH-GUIDE.

Application filed February 4, 1915.

To all 'whom t may concern n Be it known that I, JOHN T. BOLTON, a citizen of the United States, residing at New Haven, in the countyv of New Haven and State of Connecticut, have invented a new and useful Improvement in Automatic Cloth-Guides; and I do hereby declare the Specification of Letters Patent.

Patented May 30, 1916.

Serial No. 6,163.

Vradial arms 17 springing from a chambered Y head 18 secured in any convenient manner to the frame of the cloth machine whatever the character of the same may be.

At its upper end the pin or stud 9 bears in following, when taken in connection with the the upper portion of a spring cup 19 having accompanying drawings, and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, in-.

Figure 1 a plan view of one form which an automatic cloth-guide constructed in accordance with my invention may assume, the parts being shown in their normal positions with the rollers deflected with respect to the line of travel of the cloth. Fig. 2 a corresponding view showing the reverse but less marked deflection of the swivel-frame or carrier of thefdevice for the restoration of the cloth to its predetermined line of travel. Fig. 3 a view of the device in inside elevation. Fig. 4 a view of the device in vertical section. Fig. 5 a view of the device in transverse section on the line L-b of Fig. 3.

My invention relates to an improved automatic cloth guide, the object being to produce a simple, convenient and reliable device constructed to stretch the cloth and to constantly oiset the tendency to leave its predetermined line of travel.

With these ends in view my invention consists in an automatic cloth guide having certain details of construction and combinations of parts as will be hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown, I employ an idler guide-roll 2 and an actuating guide-roll 3, the former being considerably wider than the latter, and both turning upon a. ixed horizontal stud or shaft 4 provided at its inner end with an integral shoulder 5 and secured by a nut 6 and washer 7 in the upper end of a swivel frame or carrier 8 turning in a horizontal plane upon a vertical swivel pin or stud 9. The said actuating guide-roll 3 is provided with an outwardly projecting sleeve 10 mounting a pinion 11 meshing into a gear wheel 12 upon the inner end of a horizontal shaft 13 journaled in the frame 8 and having its projecting outer end furnished with a bevel pinion 14 meshing into a segmental its upper end flanged and adapted to be set into the upper end of thev said head 18 in 65- which it is secured by a set screw 20. y The said cup 19 receives a helical spring 21 the inner. end of which is connected as shown 1n Flg. 5, with the said stud 9, while its outer end is hooked into a slot- 22 in the cup 70 19, the spring being held in place in the cup by a collar 23 upon the stud the lower end of which bears in thereduced lower end of the head.

I also' employ two supplemental guide- 75 rolls 24, 24, located on opposite sidesof the rolls 2 and 3 and turning loosely upon iXed studs 25 parallel with the stud or shaft 4 and mounted in diverging arms 26 cast integral with the frame or carriery 8, the centers of the studs 25 being located below the center of the stud 4 and the cloth 27 being passed, as shown in Fig. 3, over the supplemental rolls and under the main rolls 2 and 3, whereby the cloth is caused to hug the rolls 2 and 3 and cling thereto for being stretched or controlled thereby. v l

The tension of the spring 21 normally holds the projecting end 28 of the shaft 13 against an adjustable stop 29 secured to the 90 segment 16. l

In the operation of my improved automatic cloth guide, the three studs 4, and 24,

24, and the several rolls mounted upon them stand at an angle to the predetermined path 9 5 in which it is designed that the cloth 27 shall travel. On account of the inclination of the axes of the rolls to the line of travel of the cloth, the cloth is constantly drawn outward and stretched, the amount Y of stretching being indicated in Fig. 1 by the i line a joining the lines o and c both representing the same edge of the cloth, the line Z) prior to the entrance of the same between the rolls and the line c after the same leaves the rolls. The tendency of the rolls resulting from their inclination to the line of travel of the cloth is to draw the edge of the cloth too far outward. v l/Vhen this occurs the edge of the cloth runs upon the roll 3 which is now turned by the cloth itself. As the roll 3 is turned it acts through the ,pinion 11, wheel 12, shaft 13, beveled pinion. 14 and rack 15 to swing the pivotal frame or carrier 3 upon the pin 9 as a center until the axes-of the rolls are caused to stand atsubstantially a right angle with respect to the true line of travel of the cloth, whereby the cloth is caused to ride oft' the roll 3 and resume its place on the roll 2 at which time the spring 21 asserts itself to reversely turn the pin 9 until the end 28 of the shaft 13 is rengaged with the stop 29. This action is repeated just as often as the cloth gets enough out of line to run over upon the roll 3 which utilizes the movement of the cloth to temporarily change the angle of the rolls to the cloth long enough to offset the tendency and restore the same to its proper line of travel. It will be noted that just as soon as the frame 8 has been swung enough to change the angle of the axes of the rolls, the bevel pinion 14 runs ofi:l the rack 15 which is adapted in length to this requirement, otherwise the frame 8 would be swung too far with the effect of deflecting the line'of travel of the cloth in the opposite direction. It will be understood, of course, that the opposite edge of the cloth is passed over and through a duplicateof the device described.

I claim 1.. In a cloth guide, the combination with a pivotal carrier or frame, of a fixed shaft, an idler guide roll and an actuating guide roll, the former being located outside of the latter, gearing connected with the inner guide roll for turning the carrier upon its pivot so as to change the position of the said shaft with respect to the predetermined line of travel of the cloth, and a spring c0- acting with the pivotal carrier for restoring it to its normal position after it has been operated by the said actuating guide roll in correcting the undue deflection of the cloth.

' 2. In a cloth guide, the combination with a pivotal frame or carrier, of a fixed shaft, an idler guide roll and an actuating guide roll mounted upon the said shaft, the latter being located inside of the former, a segmental rack, gearing between the actuating guide roll and the said rack whereby when the said roll is actuated by the cloth the piv otal carrier will be turned upon its axis, and a spring co-acting with the carrier to restore the same to its normal position after ythe same has been turned through the medium of the actuating guide roll for the correction of the undue deflection of the cloth.,

3. In a cloth guide, the combination with a pivotal carrier, of a shaft, an idler guide roll and an actuating guide roll mounted upon the said shaft, the latter being located inside of the former, a rack, gearing connecting the actuating guide roll with the rack, a chambered head receiving a stud or pin, of a carrier and a helical spring located within the said head and connected with the stud or pin for returning the carrier to its normal position after it has been actuated to correct the undue deiiection of the cloth.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

JOHN T. BOLTGN. Witnesses:

M. P. NICHOLS, C. L. WEED.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of` Patents, Washington, D. C. 

